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Add support for serving the static assets in a report
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,15 @@ | ||
| load("@io_bazel_rules_go//go:def.bzl", "go_library") | ||
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| go_library( | ||
| name = "reportsrv", | ||
| srcs = ["reportsrv.go"], | ||
| importpath = "github.com/RMI/pacta/reportsrv", | ||
| visibility = ["//visibility:public"], | ||
| deps = [ | ||
| "//blob", | ||
| "//db", | ||
| "//pacta", | ||
| "@com_github_go_chi_chi_v5//:chi", | ||
| "@org_uber_go_zap//:zap", | ||
| ], | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,177 @@ | ||
| package reportsrv | ||
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| import ( | ||
| "context" | ||
| "errors" | ||
| "fmt" | ||
| "io" | ||
| "net/http" | ||
| "strings" | ||
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| "github.com/RMI/pacta/blob" | ||
| "github.com/RMI/pacta/db" | ||
| "github.com/RMI/pacta/pacta" | ||
| "github.com/go-chi/chi/v5" | ||
| "go.uber.org/zap" | ||
| ) | ||
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| type Config struct { | ||
| DB DB | ||
| Blob Blob | ||
| Logger *zap.Logger | ||
| } | ||
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| func (c *Config) validate() error { | ||
| if c.DB == nil { | ||
| return errors.New("no DB was given") | ||
| } | ||
| if c.Blob == nil { | ||
| return errors.New("no blob client was given") | ||
| } | ||
| if c.Logger == nil { | ||
| return errors.New("no logger was given") | ||
| } | ||
| return nil | ||
| } | ||
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| type Server struct { | ||
| db DB | ||
| blob Blob | ||
| logger *zap.Logger | ||
| } | ||
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| type DB interface { | ||
| Begin(context.Context) (db.Tx, error) | ||
| NoTxn(context.Context) db.Tx | ||
| Transactional(context.Context, func(tx db.Tx) error) error | ||
| RunOrContinueTransaction(db.Tx, func(tx db.Tx) error) error | ||
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| AnalysisArtifactsForAnalysis(tx db.Tx, id pacta.AnalysisID) ([]*pacta.AnalysisArtifact, error) | ||
| Blobs(tx db.Tx, ids []pacta.BlobID) (map[pacta.BlobID]*pacta.Blob, error) | ||
| } | ||
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| type Blob interface { | ||
| Scheme() blob.Scheme | ||
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| ReadBlob(ctx context.Context, uri string) (io.ReadCloser, error) | ||
| } | ||
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| func New(cfg *Config) (*Server, error) { | ||
| if err := cfg.validate(); err != nil { | ||
| return nil, fmt.Errorf("invalid config: %w", err) | ||
| } | ||
| return &Server{ | ||
| db: cfg.DB, | ||
| blob: cfg.Blob, | ||
| logger: cfg.Logger, | ||
| }, nil | ||
| } | ||
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| func (s *Server) verifyRequest(next http.Handler) http.Handler { | ||
| return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
| // TODO! | ||
| next.ServeHTTP(w, r) | ||
| }) | ||
| } | ||
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| func (s *Server) RegisterHandlers(r chi.Router) { | ||
| r.Use(s.verifyRequest) | ||
| r.Get("/report/{analysis_id}/*", s.serveReport) | ||
| } | ||
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| func (s *Server) serveReport(w http.ResponseWriter, r *http.Request) { | ||
| aID := pacta.AnalysisID(chi.URLParam(r, "analysis_id")) | ||
| if aID == "" { | ||
| http.Error(w, "no id given", http.StatusBadRequest) | ||
| return | ||
| } | ||
| ctx := r.Context() | ||
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| artifacts, err := s.db.AnalysisArtifactsForAnalysis(s.db.NoTxn(ctx), aID) | ||
| if err != nil { | ||
| http.Error(w, "failed to get artifacts: "+err.Error(), http.StatusInternalServerError) | ||
| return | ||
| } | ||
| var blobIDs []pacta.BlobID | ||
| for _, a := range artifacts { | ||
| blobIDs = append(blobIDs, a.Blob.ID) | ||
| } | ||
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| blobs, err := s.db.Blobs(s.db.NoTxn(ctx), blobIDs) | ||
| if err != nil { | ||
| http.Error(w, "failed to get blobs: "+err.Error(), http.StatusInternalServerError) | ||
| return | ||
| } | ||
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| subPath := strings.TrimPrefix(r.URL.Path, "/report/"+string(aID)+"/") | ||
| if subPath == "" { | ||
| subPath = "index.html" | ||
| } | ||
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| for _, a := range artifacts { | ||
| // Container is just 'reports', we can ignore that. | ||
| b, ok := blobs[a.Blob.ID] | ||
| if !ok { | ||
| s.logger.Error("no blob loaded for blob ID", zap.String("analysis_artifact_id", string(a.ID)), zap.String("blob_id", string(a.Blob.ID))) | ||
| continue | ||
| } | ||
| uri := string(b.BlobURI) | ||
| _, path, ok := blob.SplitURI(s.blob.Scheme(), uri) | ||
| if !ok { | ||
| s.logger.Error("blob had invalid URI", zap.String("analysis_artifact_id", string(a.ID)), zap.String("blob_uri", uri)) | ||
| continue | ||
| } | ||
| _, uriPath, ok := strings.Cut(path, "/") | ||
| if !ok { | ||
| s.logger.Error("path had no UUID prefix", zap.String("analysis_artifact_id", string(a.ID)), zap.String("blob_uri", uri), zap.String("blob_path", path)) | ||
| continue | ||
| } | ||
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| if uriPath != subPath { | ||
| continue | ||
| } | ||
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| r, err := s.blob.ReadBlob(ctx, uri) | ||
| if err != nil { | ||
| http.Error(w, "failed to read blob: "+err.Error(), http.StatusInternalServerError) | ||
| return | ||
| } | ||
| defer r.Close() | ||
| w.Header().Set("Content-Type", fileTypeToMIME(b.FileType)) | ||
| if _, err := io.Copy(w, r); err != nil { | ||
| http.Error(w, "failed to read/write blob: "+err.Error(), http.StatusInternalServerError) | ||
| return | ||
| } | ||
| return | ||
| } | ||
| http.Error(w, "not found", http.StatusNotFound) | ||
| return | ||
| } | ||
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| func fileTypeToMIME(ft pacta.FileType) string { | ||
| switch ft { | ||
| case pacta.FileType_CSV: | ||
| return "text/csv" | ||
| case pacta.FileType_YAML: | ||
| // Note: This one is actually kinda contentious, but I don't think it matters | ||
| // much. See https://stackoverflow.com/q/332129 | ||
| return "text/yaml" | ||
| case pacta.FileType_ZIP: | ||
| return "application/zip" | ||
| case pacta.FileType_HTML: | ||
| return "text/html" | ||
| case pacta.FileType_JSON: | ||
| return "application/json" | ||
| case pacta.FileType_TEXT: | ||
| return "text/plain" | ||
| case pacta.FileType_CSS: | ||
| return "text/css" | ||
| case pacta.FileType_JS: | ||
| return "text/javascript" | ||
| case pacta.FileType_TTF: | ||
| return "font/ttf" | ||
| default: | ||
| return "application/octet-stream" | ||
| } | ||
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| } |